Garden tool extension handle



FIG. 1 is a front, top and side perspective view of the garden tool extension handle showing my new design;

FIG. 2 is a top plan view thereof, the bottom view being a mirror image of the top view shown in FIG. 2;

FIG. 3 is a side elevational view thereof, the side opposite being a mirror image of the side shown in FIG. 3;

FIG. 4 is a front end elevational view thereof; and,

FIG. 5 is a rear end elevational view thereof.

The broken line showing of the gardening tool in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a garden tool extension handle, as shown and described. 